How to open ONETOC2 files
Did your computer fail to open an ONETOC2 file? We explain what ONETOC2 files are and recommend software that we know can open or convert your files.
What is an ONETOC2 file?
ONETOC2 files are OneNote table of contents files, which you can read more about below.
The ONETOC2 file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So an ONETOC2 opener may not be able to open all kinds of ONETOC2 files. In this case, though, we only know of one specific use.
OneNote table of contents
Through our analysis of ONETOC2 files, we know that one use of the format is OneNote table of contents. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.
ONETOC2 file openers, viewers, etc.
These apps are known to open certain types of ONETOC2 files. Remember, different programs may use ONETOC2 files for different purposes, so you may need to try out a few of them to be able to open your specific file.